Grillmeister wrote:
Even professional truck drivers need a little relief sometimes, especially when hooking and un- hooking several times a day. I have seen several use a handle / hook about two or three feet long with a handle on one end and a hook on the other.
It's more about not getting grease on your sleeve/shoulder or getting dirt/muck from the drive tires on you. The bottom of the bolster plate is covered with grease. If the 5th wheel was over greased the handle will also be greasy. Most use the hook to stay clean.